Method of marking ophthalmic lens by using laser radiation
US6997554B2 · kind B2 · utility
13Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Nov 18, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/267
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of marking an ophthalmic lens, including a step of irradiating the ophthalmic lens formed of a resin material with a laser radiation, such that the laser radiation is condensed at each of predetermined at least one spot within the ophthalmic lens, to form a whitened portion at the each of the predetermined at least one spot, for thereby providing the ophthalmic lens with a marking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.